[ 0.000000][ T0] Linux version 5.8.0-syzkaller (syzkaller@syzkaller) (gcc (GCC) 10.1.0-syz 20200507, GNU ld (GNU Binutils for Debian) 2.28) #0 SMP PREEMPT now [ 0.000000][ T0] Command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 security=apparmor lsm=lockdown,yama,safesetid,integrity,tomoyo,apparmor,bpf ima_policy=tcb workqueue.watchdog_thresh=140 kvm-intel.nested=1 nf-conntrack-ftp.ports=20000 nf-conntrack-tftp.ports=20000 nf-conntrack-sip.ports=20000 nf-conntrack-irc.ports=20000 nf-conntrack-sane.ports=20000 vivid.n_devs=16 vivid.multiplanar=1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2 netrom.nr_ndevs=16 rose.rose_ndevs=16 spec_store_bypass_disable=prctl numa=fake=2 nopcid dummy_hcd.num=8 binder.debug_mask=0 rcupdate.rcu_expedited=1 [ 0.000000][ T0] KERNEL supported cpus: [ 0.000000][ T0] Intel GenuineIntel [ 0.000000][ T0] AMD AuthenticAMD [ 0.000000][ T0] Centaur CentaurHauls [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x001: 'x87 floating point registers' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x002: 'SSE registers' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x004: 'AVX registers' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x020: 'AVX-512 opmask' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x040: 'AVX-512 Hi256' [ 0.000000][ T0] x86/fpu: Supporting XSAVE feature 0x080: 'AVX-512 ZMM_Hi256' [ 0.000000][ T0] x86/fpu: xstate_offset[2]: 576, xstate_sizes[2]: 256 [ 0.000000][ T0] x86/fpu: xstate_offset[5]: 1088, xstate_sizes[5]: 64 [ 0.000000][ T0] x86/fpu: xstate_offset[6]: 1152, xstate_sizes[6]: 512 [ 0.000000][ T0] x86/fpu: xstate_offset[7]: 1664, xstate_sizes[7]: 1024 [ 0.000000][ T0] x86/fpu: Enabled xstate features 0xe7, context size is 2688 bytes, using 'standard' format. [ 0.000000][ T0] BIOS-provided physical RAM map: [ 0.000000][ T0] BIOS-e820: [mem 0x0000000000000000-0x000000000009fbff] usable [ 0.000000][ T0] BIOS-e820: [mem 0x000000000009fc00-0x000000000009ffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000000f0000-0x00000000000fffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x0000000000100000-0x000000007ffdcfff] usable [ 0.000000][ T0] BIOS-e820: [mem 0x000000007ffdd000-0x000000007fffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000b0000000-0x00000000bfffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000fed1c000-0x00000000fed1ffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000feffc000-0x00000000feffffff] reserved [ 0.000000][ T0] BIOS-e820: [mem 0x00000000fffc0000-0x00000000ffffffff] reserved [ 0.000000][ T0] printk: bootconsole [earlyser0] enabled [ 0.000000][ T0] Malformed early option 'vsyscall' [ 0.000000][ T0] nopcid: PCID feature disabled [ 0.000000][ T0] NX (Execute Disable) protection: active [ 0.000000][ T0] SMBIOS 2.8 present. [ 0.000000][ T0] DMI: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 0.000000][ T0] Hypervisor detected: KVM [ 0.000000][ T0] kvm-clock: Using msrs 4b564d01 and 4b564d00 [ 0.000071][ T0] kvm-clock: cpu 0, msr bece001, primary cpu clock [ 0.000071][ T0] kvm-clock: using sched offset of 14563850478 cycles [ 0.025232][ T0] clocksource: kvm-clock: mask: 0xffffffffffffffff max_cycles: 0x1cd42e4dffb, max_idle_ns: 881590591483 ns [ 0.090872][ T0] tsc: Detected 2000.164 MHz processor [ 0.138644][ T0] last_pfn = 0x7ffdd max_arch_pfn = 0x400000000 [ 0.185142][ T0] x86/PAT: Configuration [0-7]: WB WC UC- UC WB WP UC- WT [ 0.235811][ T0] found SMP MP-table at [mem 0x000f5a50-0x000f5a5f] [ 0.268252][ T0] check: Scanning 1 areas for low memory corruption [ 0.305115][ T0] ACPI: Early table checksum verification disabled [ 0.330336][ T0] ACPI: RSDP 0x00000000000F5880 000014 (v00 BOCHS ) [ 0.352899][ T0] ACPI: RSDT 0x000000007FFE1F9D 000040 (v01 BOCHS BXPCRSDT 00000001 BXPC 00000001) [ 0.391780][ T0] ACPI: FACP 0x000000007FFE1860 0000F4 (v03 BOCHS BXPCFACP 00000001 BXPC 00000001) [ 0.419325][ T0] ACPI: DSDT 0x000000007FFDF040 002820 (v01 BOCHS BXPCDSDT 00000001 BXPC 00000001) [ 0.440571][ T0] ACPI: FACS 0x000000007FFDF000 000040 [ 0.464280][ T0] ACPI: APIC 0x000000007FFE1954 0000B0 (v01 BOCHS BXPCAPIC 00000001 BXPC 00000001) [ 0.504153][ T0] ACPI: HPET 0x000000007FFE1A04 000038 (v01 BOCHS BXPCHPET 00000001 BXPC 00000001) [ 0.537687][ T0] ACPI: SRAT 0x000000007FFE1A3C 000178 (v01 BOCHS BXPCSRAT 00000001 BXPC 00000001) [ 0.573846][ T0] ACPI: MCFG 0x000000007FFE1BB4 00003C (v01 BOCHS BXPCMCFG 00000001 BXPC 00000001) [ 0.614019][ T0] ACPI: SSDT 0x000000007FFE1BF0 0002CD (v01 BOCHS NVDIMM 00000001 BXPC 00000001) [ 0.663707][ T0] ACPI: NFIT 0x000000007FFE1EBD 0000E0 (v01 BOCHS BXPCNFIT 00000001 BXPC 00000001) [ 0.721304][ T0] SRAT: PXM 0 -> APIC 0x00 -> Node 0 [ 0.735572][ T0] SRAT: PXM 0 -> APIC 0x01 -> Node 0 [ 0.745058][ T0] SRAT: PXM 0 -> APIC 0x02 -> Node 0 [ 0.761209][ T0] SRAT: PXM 0 -> APIC 0x03 -> Node 0 [ 0.784235][ T0] SRAT: PXM 1 -> APIC 0x04 -> Node 1 [ 0.804013][ T0] SRAT: PXM 1 -> APIC 0x05 -> Node 1 [ 0.825547][ T0] SRAT: PXM 1 -> APIC 0x06 -> Node 1 [ 0.844359][ T0] SRAT: PXM 1 -> APIC 0x07 -> Node 1 [ 0.868986][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00000000-0x0009ffff] [ 0.893676][ T0] ACPI: SRAT: Node 0 PXM 0 [mem 0x00100000-0x3fffffff] [ 0.923121][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x40000000-0x7fffffff] [ 0.947114][ T0] ACPI: SRAT: Node 1 PXM 1 [mem 0x100000000-0x57fffffff] hotplug [ 0.963864][ T0] NUMA: Node 0 [mem 0x00000000-0x0009ffff] + [mem 0x00100000-0x3fffffff] -> [mem 0x00000000-0x3fffffff] [ 0.999137][ T0] Faking node 0 at [mem 0x0000000000000000-0x000000003fffffff] (1024MB) [ 1.022713][ T0] Faking node 1 at [mem 0x0000000040000000-0x000000007ffdcfff] (1023MB) [ 1.060480][ T0] NODE_DATA(0) allocated [mem 0x3fffb000-0x3fffffff] [ 1.085818][ T0] NODE_DATA(1) allocated [mem 0x7ffd7000-0x7ffdbfff] [ 1.248843][ T0] Zone ranges: [ 1.260480][ T0] DMA [mem 0x0000000000001000-0x0000000000ffffff] [ 1.295451][ T0] DMA32 [mem 0x0000000001000000-0x000000007ffdcfff] [ 1.325592][ T0] Normal empty [ 1.345183][ T0] Device empty [ 1.358733][ T0] Movable zone start for each node [ 1.378033][ T0] Early memory node ranges [ 1.389675][ T0] node 0: [mem 0x0000000000001000-0x000000000009efff] [ 1.416037][ T0] node 0: [mem 0x0000000000100000-0x000000003fffffff] [ 1.446030][ T0] node 1: [mem 0x0000000040000000-0x000000007ffdcfff] [ 1.472878][ T0] Zeroed struct page in unavailable ranges: 133 pages [ 1.472926][ T0] Initmem setup node 0 [mem 0x0000000000001000-0x000000003fffffff] [ 1.540533][ T0] Initmem setup node 1 [mem 0x0000000040000000-0x000000007ffdcfff] [ 5.956428][ T0] kasan: KernelAddressSanitizer initialized [ 6.051860][ T0] ACPI: PM-Timer IO Port: 0x608 [ 6.082672][ T0] ACPI: LAPIC_NMI (acpi_id[0xff] dfl dfl lint[0x1]) [ 6.132608][ T0] IOAPIC[0]: apic_id 0, version 17, address 0xfec00000, GSI 0-23 [ 6.161641][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 6.196435][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 5 global_irq 5 high level) [ 6.213360][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 6.240931][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 10 global_irq 10 high level) [ 6.268808][ T0] ACPI: INT_SRC_OVR (bus 0 bus_irq 11 global_irq 11 high level) [ 6.299512][ T0] Using ACPI (MADT) for SMP configuration information [ 6.331978][ T0] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 6.373971][ T0] TSC deadline timer available [ 6.396968][ T0] smpboot: Allowing 8 CPUs, 4 hotplug CPUs [ 6.427105][ T0] kvm-guest: KVM setup pv remote TLB flush [ 6.459774][ T0] PM: hibernation: Registered nosave memory: [mem 0x00000000-0x00000fff] [ 6.500865][ T0] PM: hibernation: Registered nosave memory: [mem 0x0009f000-0x0009ffff] [ 6.544866][ T0] PM: hibernation: Registered nosave memory: [mem 0x000a0000-0x000effff] [ 6.584167][ T0] PM: hibernation: Registered nosave memory: [mem 0x000f0000-0x000fffff] [ 6.639526][ T0] [mem 0xc0000000-0xfed1bfff] available for PCI devices [ 6.686588][ T0] Booting paravirtualized kernel on KVM [ 6.725102][ T0] clocksource: refined-jiffies: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604462750000 ns [ 6.870436][ T0] setup_percpu: NR_CPUS:64 nr_cpumask_bits:64 nr_cpu_ids:8 nr_node_ids:2 [ 6.944674][ T0] percpu: Embedded 65 pages/cpu s226696 r8192 d31352 u1048576 [ 6.994690][ T0] kvm-guest: stealtime: cpu 0, msr 2ce20a40 [ 7.031645][ T0] kvm-guest: PV spinlocks enabled [ 7.057027][ T0] PV qspinlock hash table entries: 256 (order: 0, 4096 bytes, linear) [ 7.113671][ T0] Built 2 zonelists, mobility grouping on. Total pages: 515942 [ 7.151654][ T0] Policy zone: DMA32 [ 7.173006][ T0] Kernel command line: BOOT_IMAGE=/vmlinuz root=/dev/sda1 console=ttyS0 earlyprintk=serial vsyscall=native rodata=n oops=panic panic_on_warn=1 nmi_watchdog=panic panic=86400 net.ifnames=0 sysctl.kernel.hung_task_all_cpu_backtrace=1 security=apparmor lsm=lockdown,yama,safesetid,integrity,tomoyo,apparmor,bpf ima_policy=tcb workqueue.watchdog_thresh=140 kvm-intel.nested=1 nf-conntrack-ftp.ports=20000 nf-conntrack-tftp.ports=20000 nf-conntrack-sip.ports=20000 nf-conntrack-irc.ports=20000 nf-conntrack-sane.ports=20000 vivid.n_devs=16 vivid.multiplanar=1,2,1,2,1,2,1,2,1,2,1,2,1,2,1,2 netrom.nr_ndevs=16 rose.rose_ndevs=16 spec_store_bypass_disable=prctl numa=fake=2 nopcid dummy_hcd.num=8 binder.debug_mask=0 rcupdate.rcu_expedited=1 [ 7.592320][ T0] mem auto-init: stack:off, heap alloc:on, heap free:off [ 8.014119][ T0] Memory: 1503356K/2096620K available (116743K kernel code, 17665K rwdata, 21624K rodata, 2792K init, 23940K bss, 593008K reserved, 0K cma-reserved) [ 8.216892][ T0] Running RCU self tests [ 8.241558][ T0] rcu: Preemptible hierarchical RCU implementation. [ 8.277209][ T0] rcu: RCU lockdep checking is enabled. [ 8.304344][ T0] rcu: RCU restricting CPUs from NR_CPUS=64 to nr_cpu_ids=8. [ 8.347196][ T0] rcu: RCU callback double-/use-after-free debug enabled. [ 8.385933][ T0] rcu: RCU debug extended QS entry/exit. [ 8.414609][ T0] All grace periods are expedited (rcu_expedited). [ 8.447716][ T0] Trampoline variant of Tasks RCU enabled. [ 8.474906][ T0] rcu: RCU calculated value of scheduler-enlistment delay is 10 jiffies. [ 8.500235][ T0] rcu: Adjusting geometry for rcu_fanout_leaf=16, nr_cpu_ids=8 [ 8.556971][ T0] NR_IRQS: 4352, nr_irqs: 488, preallocated irqs: 16 [ 8.639584][ T0] random: get_random_bytes called from start_kernel+0x23b/0x46a with crng_init=0 [ 9.030904][ T0] Console: colour VGA+ 80x25 [ 9.107349][ T0] printk: console [ttyS0] enabled [ 9.107349][ T0] printk: console [ttyS0] enabled [ 9.146834][ T0] printk: bootconsole [earlyser0] disabled [ 9.146834][ T0] printk: bootconsole [earlyser0] disabled [ 9.198446][ T0] Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar [ 9.231540][ T0] ... MAX_LOCKDEP_SUBCLASSES: 8 [ 9.239770][ T0] ... MAX_LOCK_DEPTH: 48 [ 9.248088][ T0] ... MAX_LOCKDEP_KEYS: 8192 [ 9.258086][ T0] ... CLASSHASH_SIZE: 4096 [ 9.271835][ T0] ... MAX_LOCKDEP_ENTRIES: 32768 [ 9.288058][ T0] ... MAX_LOCKDEP_CHAINS: 65536 [ 9.308314][ T0] ... CHAINHASH_SIZE: 32768 [ 9.325560][ T0] memory used by lock dependency info: 6301 kB [ 9.346917][ T0] memory used for stack traces: 4224 kB [ 9.360560][ T0] per task-struct memory footprint: 1920 bytes [ 9.381953][ T0] mempolicy: Enabling automatic NUMA balancing. Configure with numa_balancing= or the kernel.numa_balancing sysctl [ 9.420447][ T0] ACPI: Core revision 20200717 [ 9.458931][ T0] clocksource: hpet: mask: 0xffffffff max_cycles: 0xffffffff, max_idle_ns: 19112604467 ns [ 9.543196][ T0] APIC: Switch to symmetric I/O mode setup [ 9.576059][ T0] x2apic enabled [ 9.597458][ T0] Switched APIC routing to physical x2apic. [ 9.622263][ T0] kvm-guest: setup PV IPIs [ 9.726187][ T0] ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1 [ 9.740934][ T0] clocksource: tsc-early: mask: 0xffffffffffffffff max_cycles: 0x1cd4c92266a, max_idle_ns: 440795223404 ns [ 9.777786][ T0] Calibrating delay loop (skipped) preset value.. 4000.32 BogoMIPS (lpj=20001640) [ 9.797406][ T0] pid_max: default: 32768 minimum: 301 [ 9.809506][ T0] LSM: Security Framework initializing [ 9.817275][ T0] LSM: security= is ignored because it is superseded by lsm= [ 9.827723][ T0] Yama: becoming mindful. [ 9.849446][ T0] TOMOYO Linux initialized [ 9.863657][ T0] AppArmor: AppArmor initialized [ 9.867185][ T0] LSM support for eBPF active [ 9.895748][ T0] Dentry cache hash table entries: 262144 (order: 9, 2097152 bytes, vmalloc) [ 9.899559][ T0] Inode-cache hash table entries: 131072 (order: 8, 1048576 bytes, vmalloc) [ 9.908560][ T0] Mount-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 9.917242][ T0] Mountpoint-cache hash table entries: 4096 (order: 3, 32768 bytes, vmalloc) [ 9.991248][ T0] ------------[ cut here ]------------ [ 9.998756][ T0] WARNING: CPU: 0 PID: 0 at mm/memcontrol.c:5226 mem_cgroup_css_alloc+0x535/0x1c30 [ 10.008336][ T0] Kernel panic - not syncing: panic_on_warn set ... [ 10.017018][ T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.8.0-syzkaller #0 [ 10.017018][ T0] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 [ 10.017018][ T0] Call Trace: [ 10.017018][ T0] dump_stack+0x18f/0x20d [ 10.017018][ T0] panic+0x2e3/0x75c [ 10.017018][ T0] ? __warn_printk+0xf3/0xf3 [ 10.017018][ T0] ? printk+0xba/0xed [ 10.017018][ T0] ? log_store.cold+0x16/0x16 [ 10.017018][ T0] ? __warn.cold+0x5/0x4a [ 10.017018][ T0] ? __warn+0xd6/0x1f2 [ 10.017018][ T0] ? mem_cgroup_css_alloc+0x535/0x1c30 [ 10.017018][ T0] __warn.cold+0x20/0x4a [ 10.017018][ T0] ? mem_cgroup_css_alloc+0x535/0x1c30 [ 10.017018][ T0] report_bug+0x1bd/0x210 [ 10.017018][ T0] handle_bug+0x38/0x90 [ 10.017018][ T0] exc_invalid_op+0x14/0x40 [ 10.017018][ T0] asm_exc_invalid_op+0x12/0x20 [ 10.017018][ T0] RIP: 0010:mem_cgroup_css_alloc+0x535/0x1c30 [ 10.017018][ T0] Code: 01 00 48 8d bb 28 14 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 80 3c 02 00 74 81 e8 e0 00 c2 f9 e9 77 ff ff ff <0f> 0b e9 21 fc ff ff 48 89 ef e8 bc 28 c7 f9 48 b8 00 00 00 00 00 [ 10.017018][ T0] RSP: 0000:ffffffff89a07e20 EFLAGS: 00010246 [ 10.017018][ T0] RAX: dffffc0000000000 RBX: ffffffff89a99dc0 RCX: 1ffff1100f550428 [ 10.017018][ T0] RDX: 1ffffffff135363d RSI: ffffffff83b0f2c2 RDI: ffffffff89a9b1e8 [ 10.017018][ T0] RBP: ffff88807aa82000 R08: 0000000000000001 R09: ffff88802c406e2f [ 10.017018][ T0] R10: 0000000000000000 R11: ffffffff810000d4 R12: ffffffff8ab224b4 [ 10.017018][ T0] R13: 0000000000000000 R14: 0000000000000000 R15: ffffffff8ab224d0 [ 10.017018][ T0] ? secondary_startup_64+0xa4/0xb0 [ 10.017018][ T0] ? idr_alloc+0xe2/0x130 [ 10.017018][ T0] ? cgroup_css.part.0.isra.0+0x4b/0xf0 [ 10.017018][ T0] ? cgroup_init_subsys+0x20f/0x4d7 [ 10.017018][ T0] ? __offline_pages+0x1e10/0x1e10 [ 10.017018][ T0] cgroup_init_subsys+0x215/0x4d7 [ 10.017018][ T0] cgroup_init+0x359/0xa63 [ 10.017018][ T0] ? trace_init_perf_perm_irq_work_exit+0xe/0xe [ 10.017018][ T0] start_kernel+0x426/0x46a [ 10.017018][ T0] secondary_startup_64+0xa4/0xb0 [ 10.017018][ T0] Rebooting in 86400 seconds..